Question about 1994 Jeep Grand Cherokee

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1994 JeepGrand Cherokee check engine light comes on when driving goes off when brakes applied no error code reported by test

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  • Jeep Master
  • 20,706 Answers

The oldest story on earth cars, from 1988 to now.
the CEL GLOWS< (SES OR MIL)
you have to scan it when it glows, or its all a wasted of time
ever heard of intermittent.
CEL = CHeck engine light, not brakes, or other warnings.

my guess is you are doing the key on 3 times tests.
be nice to know that. ??????
or using and INNOVA 3140 scan tool that is REAL.

try to know that turning the key off, some codes are erased.
the key test (i call it the key jive test) only works if you are very very lucky,
its no substitute for a REAL tool.
not at all. not in the least.
its really just a toy. good for if stranded, somewhere yes.
but not used in the shop.

some errors are stored in the memory, if power to memory and the memory fuse is not blown, are stored, most are.
but NOT ALL.
case in point , CKP or CMP sensor errors
the PCM loves to rest them. the second they clear up
and does not store it.
I can show a PCM running on my bench jig
and show this to be true.

this car has flash codes (cel flashes. and can be scanned.
the latter is 10x better.

Posted on Dec 11, 2016

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Posted on Jan 02, 2017

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SOURCE: 1999 jeep grand cherokee brake lights

I have a 2004 Jeep Grand Cherokee that I purchased only three months ago. It has already been in the shop three times in a month so I fee like I can help you with your problem. My rear brake light did the same thing and I just had to purchase the whole light socket. It only cost $13.00 from Jeep. I know your jeep is a 99' but the mechanic said that all Grand Cherokees from the last six years or so had the same problem. Changing the light bulb won't work. It will simply burn your bulb out. Simply buy the plastic socket that the bulb snaps in and that should fix your problem. It did for me.

Posted on Jul 25, 2008

  • 1056 Answers

SOURCE: Brake lights not working when you apply brakes

check the brake light switch.
It's usually up under the dash, and it activated by the brake pedal.

There are 2 wires going to it. To test it, jumper across the leads.
or, watch the "action" sometimes you just need to reposition the switch to get it to work.

Posted on Aug 07, 2008

  • 1 Answer

SOURCE: the tail lights are out, so the brake lights-Jeep Grand Cherokee

i have a 2002 jeep grand cherokee i had the same problem when i would apply my brakes when the headlights were on my brake lights would go out, i found that my bulbsocket was not making good contact with the socket housing, if you notice when you take off a bulb, look at the light fixture where you unscrewed your breaklight bulb you will notice 3 medal contacts-they should be silver in the socket housing and like a copper on the socket bulb, in the socket housing their should be 2 silver contacts together and 1 by itself the one that looks by itself is making bad contact with the copper one thats by itself on the bulb, what you can do for a quick fix is; get a small piece of low cage wire or a thin piece of metal like copper stick that in to the bottom or top of that metal contact--i did it through the bottom leave the wire or piece of medal sticking out enough for where it can get contact with the bulb (just a little wire is enough to make contact, now screw the bulb on and test it---it will work----i did it to mine, if you need more assistance let me know lmadrid82@yahoo.com

Posted on Feb 20, 2009

digritz
  • 530 Answers

SOURCE: 1994 dodge caravan check engine light comes on

These are all the definitions for your codes.
It's hard to give an exact cause for these codes because of there are a number of different items that could cause these.
The first one could be caused by Incorrect camshaft timing,
VCT solenoid valve stuck open or continuous oil flow to piston chamber,
Camshaft advance mechanism binding, or faulty VCT unit,
The others are most likely bad sensors.
I wish I could be more help but it's difficult to trouble shoot this kind of problem without having the vehicle here in front of me.
Good luck

P0012 "A" Camshaft Position - Timing Over-Retarded (Bank 1)

P0032 HO2S Heater Control Circuit High (Bank 1 Sensor 1)
P0055 HO2S Heater Resistance (Bank 1, Sensor 3)


Posted on Sep 10, 2009

fingaz22
  • 1068 Answers

SOURCE: 1994 Acura Legend check engine light is on. When

turn the ignition key to the acc or lock position with the odometer reading showing.

while holding the trip/reset button turn the ignition to the on position. light should flash and go out!

reset done. if you have any more issues plese ask. good luck

Posted on Sep 25, 2009

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1 Answer

Dash lights on my 2010 venza won't go off when driving on dash


are there some that do go off, ????
the ENGINE light glows when there are engines problems
you scan the PCM and it reports errors, YOU HAVE ERRORs, scan it.
the brakes come on, if engine stalls. or RPM on engine falls real low
about 300 RPM the engine can stall, (engine problems) and when it does that the dash goes to self test of dash lamps.
turn key, no start, see all those lamps doing there self test? bingo that.
if engine RPM are normal and the brake lamp comes on,, all this is in the lost operators guide int he glove box.
Brakes failure or hand brake is left on, it says that clearly and is true.

Jan 30, 2014 | 2010 Toyota Venza

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Idalls good give it gas and motor starts shaking like it is out of time and check eng light is on


start by doing a code self test.

insert ignition key into the ignition. then turn the key in the following sequence; off-on, off-on, off-on. ( on is when the dash lights come on, and off is one click back from on) codes will either flash out in pairs of numbers using the check engine light or will display on a digital odometer. write down the codes and google the findings or report back here for futher assistance.

Jul 13, 2011 | 1994 Jeep Grand Cherokee

1 Answer

My jeep cherokee will just cut off while I'm driving, what could be the problem?


do a computer self test. It may aide in the troubleshooting.

Insert ignition key, turn as follows:

off-on, off-on, off-on. The codes will flash out in pairs of numbers using the check engine light, 5-5 being the end of the test. Or the codes may display on a digital odometer if so equipped. Report back with the codes.

Feb 04, 2011 | 1994 Jeep Grand Cherokee

1 Answer

Oil light comes on when brakes are applied. goes off when they are released


Sounds more like an electrical problem. Check for burned out brake light bulbs and low brake fluid which might be the actual problem being reported by the car. If that does not work, check your oil level, could be missing a quart. And if that is not the problem try unplugging the oil sensor unit and go for a test drive:if it does come on again this would confirm an electrical issue.

Nov 15, 2010 | 2004 Chrysler Concorde

1 Answer

Check engine light on; check gages light on


do a self test. insert key
turn key to off-on, off-on, off-on ( on is when the dash lights come on, off is one click back)

The codes will either flash out on the check engine light in pairs of numbers, 5-5 being the end of the test. Or the codes will display in the digital odometer. write down the codes and report back

Nov 03, 2010 | 2004 Jeep Grand Cherokee

1 Answer

WHILE DRIVING MY JEEP GRAND CHEROKEE LAREDO CHECK GAUGE LIGHT CAME ON TEMPORALY THAN WENT OFF. AGAIN CAME ON WHILE I WAS STOPING MY CAR BY TRAFIC LIGHT AND WHEN CAR EXCELRATING GOES OFF!?


run a self test. turn ignition key as follows.

off-on, off-on, off-on.
on is when the dash lights come on(not cranking) and off is one click back. the computer codes will flash out in pairs on check engine light( 5-5 being end of test) or will display on the digital odometer. write down codes and report back.

Nov 01, 2010 | 2001 Jeep Grand Cherokee

1 Answer

1994 jeep grand cherokee dash lights come on when brakes are applied. Altenators is charching and battery and teminals are good checked ground from battery to motor its good where do i go from hetre


What dash lights come on? if its the brake or ABS lights that means your brake pads need to be changed, in some brake pads there is a sensor that also has to be replaced if you have gone too far into the rotor.

Sep 07, 2010 | 1994 Jeep Grand Cherokee

1 Answer

Jeepgrand cherokee 2000 engine warning light on


go to your local auto patrs store and ask them to read your computer to see you CODES on it. it many just be an O2 senors easliy replace.

Apr 18, 2010 | 2000 Jeep Grand Cherokee

1 Answer

Transmission/engine


First things first...check your fluids! Automatic trans. fluid : park brake applied, engine running in park, check dip stick. Fluid should be at full mark and brite red with no smell of burn. Report back with fluid condtions, a little leg work goes a long ways...

Aug 22, 2008 | 1999 Jeep Grand Cherokee

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